Continuous drying-kiln with vertical axis.



J. RE'OL. CONTINUOUS DRYING KILN WITH VERTICAL AXIS APPLICATION FILED DEC. 24, 1912.

Patented Apr. 14, 1914 2 S H EBTSSHEET 1.

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CONTINUOUS DRYING KILN WITH VERTICAL AXIS. APPLICATION FILED D150. 24, 1912.

1,093,206. Patented Apr. 14, 1911' Fig". 2.

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"s a r JEAN RE'oL, or ALAIS, rnancnnssrenon TO socn'irn' DE consrrwcrrons Mn'cA- NIQUES DALAIS, or ALAIS, FRANCE, A CORPORATION.

CONTINUOUS DRYING-KILN WITH VERTICAL AXIS.

To all whom it may concern:

Be it known that I, JEAN RnoL, engineer, residing at Alais, Department of Gard, France, have invented new and useful Improvements in Continuous Drying-Kilns with Vertical Axes, which improvements are fully set forth in the following specification.

The present invention relates to improvements in kilns, particularly that class of drying kilns in which the products to be dried, travel in successive cascades in the direction opposite to that of the hot gases coming from any desired source; the hot gases being drawn in by a fan and forced either outside or under the grate of an independent furnace or into a branch, so as to be recuperated by means of a desired device.

This invention relates to certain improve ments effected in the said drying kiln.

In order to make the following explana tion as clear as possible, a construction of the improved apparatus is illustrated by way of example in the accompanying drawings, in which- Figure 1 is a vertical section of the ap paratus, and Figs. 2 and 3 show on two different scales the inner development. of the apparatus. Fig. i is a horizontal crosssection.

The distribution of the material and its successive falls from the upper to the bottom part take place in the same way as in the known apparatus.

Hot air is circulated in the direction opposite to that of the material by means of the following device constituting one of the improvements forming the subject of the invention. The principle consists in directing the hot gases to the exact points where take place the falls of the material. To that end, the central spindle is provided at each floor with vertical scrapers a of a suitable height. To the said vertical scrapers are se- Specification of Letters Patent.

Application filed December 24, 1912.

Patented Apr. 14, 1914. Serial No. 738,438.

cured horizontal sectors 6 having the outline a e f (Fig. 4). The fixed soles g comprise rlbs h forming a Vertical partition between the fiXed sole and thehorizontal sectors secured to the scrapers a of the row below. The central spindle, in its movement of rotation in the direction of the arrow (Fig. 4:), drives the vertical blades and with them the horizontal sectors, so that the latter at a 'iven moment lie under the ribs '72, so as to form an obturator and force the hot gases to pass exactly through the only open orifice, namely that at which takes place the fall of the material, which fall is produced by a scraper a. The play of the obturator-s and of the scrapers is automatic and continuous. The gases escape at 72 and pass then through a cyclone or dust separator of a well known type. Finally the fan can be a blower, and the casing of the kiln can have the cylindro-conical shape shown in Fig. 1, so that all the cross-sections of passage for the gases should go increasmg.

Claim- In a vertical drying kiln the combination of a central vertical spindle with a plurality of superposed, spaced platforms alternately arranged around said spindle, vertical scrapers upon each of said platforms, horizontal sections secured to said scrapers, and vertical ribs secured to the underside of said platforms forming at given moments an obturator with said sections for forcing the hot gases to pass through the falling material removed from said platforms by said scrapers in an automatical and continuous operation.

In testimony whereof I have signed this specification in the presence of the subscribing witnesses.

J EAN REOL.

\Vitnesses FABIEN Crooner, FABIEN Cnoorrnr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

